Daniel Michael DeVito, Jr. (known as Danny DeVito, born November 17, 1944) is an American actor, comedian, director, and producer. He first gained prominence for his portrayal of Louie De Palma on the ABC and NBC television series Taxi (1978–1983), for which he won a Golden Globe and an Emmy.DeVito and his wife, Rhea Perlman, founded Jersey Films, a production company known for films such as Pulp Fiction, Garden State, and Freedom Writers. DeVito also owns Jersey Television, which produced the Comedy Central series Reno 911!. DeVito and Perlman also starred together in his 1996 film Matilda, based on Roald Dahl's children's novel. He currently stars as Frank Reynolds on the FX sitcom It's Always Sunny in Philadelphia
DeVito was born in Neptune Township, New Jersey, the son of Julia, a homemaker, and Daniel Michael DeVito, Sr., who owned several small businesses, including a dry cleaning store, a dairy outlet, a luncheonette, and a pool hall. DeVito is of Italian descent and was raised a Roman Catholic, growing up in Asbury Park. He boarded at Oratory Preparatory School, in Summit, New Jersey, graduating in 1962, and subsequently trained at the American Academy of Dramatic Arts, from which he graduated in 1966.
DeVito played Martini in the 1975 film One Flew Over the Cuckoo's Nest, reprising his role from the 1971 off-Broadway play of the same name. He gained fame in 1978 playing Louie De Palma, the short but domineering dispatcher for the fictional Sunshine Cab Company, on the hit TV show Taxi. After Taxi ended, DeVito began a successful film career, starting with roles in 1983's Terms of Endearment, and as the comic rogue in the romantic adventure Romancing the Stone, starring Michael Douglas and Kathleen Turner, and its 1985 sequel, The Jewel of the Nile. In 1986, DeVito starred in Ruthless People 
Bette Midler and Judge Reinhold, and in 1987, he made his feature-directing debut with the dark comedy Throw Momma from the Train, in which he starred with Billy Crystal and Anne Ramsey. Two years later, DeVito reunited with Douglas and Turner in The War of the Roses, which he directed and in which he co-starred.DeVito's work during this time includes Other People's Money with Gregory Peck, director Barry Levinson's Tin Men as a competitive rival salesman to Richard Dreyfuss' character, two co-starring vehicles with Arnold Schwarzenegger (the comedies Twins and Junior), and playing The Penguin as a deformed sociopath in director Tim Burton's Batman Returns (1992).
Although generally a comic actor, DeVito expanded into dramatic roles with The Rainmaker, Hoffa (1992), which he directed and in which he co-starred with Jack Nicholson, Jack the Bear (1993), L.A. Confidential, The Big Kahuna, and Heist (2001), as a gangster nemesis to Gene Hackman's character.DeVito has an interest in documentaries: In 2006, he began a partnership with Morgan Freeman's company ClickStar, on which he hosts a documentary channel called Jersey Docs.
He is noted for his short stature (approximately 5 feet).
DeVito has become a major film and television producer. Through Jersey Films, he has produced many films, including Pulp Fiction, Get Shorty, Erin Brockovich (for which he received an Academy Award nomination for Best Picture), Gattaca, and Garden State.In 1999, DeVito produced and co-starred in Man on the Moon, a film about the unusual life of his former Taxi co-star, Andy Kaufman, who was played in the film by Jim Carrey. DeVito also produced the Comedy Central series Reno 911!, as well as the film spin off Reno 911!: Miami.